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Date:      Wed, 14 Feb 2001 16:51:31 -0700
From:      Mike Porter <mupi@mknet.org>
To:        The Utz Family <utz@serv.net>
Cc:        freebsd-multimedia@FreeBSD.ORG
Subject:   Re: Fwd: BSD not finding ESS 1878 sound chip...
Message-ID:  <01021416513101.81778@mukappa.home.com>
In-Reply-To: <Pine.BSF.4.02.10102140725350.12060-100000@itchy.serv.net>
References:  <Pine.BSF.4.02.10102140725350.12060-100000@itchy.serv.net>

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> > pnpbios: Bad PnP BIOS data checksum
>
> this be plenty bad here......
>
> > pnpbios: bad pnpbios checksum?  That shouldn't affect the multimedia
> > stuff, should it?
>
> hell yes! your pnp system has fallen over dead! :-)
> most sound architectures are PnP aware/dependent.
>
Good point, although the BIOS has manual specifications of the audio 
settings.  I did try compiling a new kernel without options PNPBIOS but that 
didn't help.

>
> well, not having looked at the code, i am going to guess that chip1, 8086
> and 1234 are placeholder values that some diligent dev added to their code
> so that the system wouldnt crash if the probe failed to get started ( with
> 'starting' coming before 'failing', u would be making progess if you could
> get it to fail :-) )
>
I see the point here.

> my first guess wouold be to toggle the Plug and Play OS settings in the
> BIOS (meaning that whatever it sez now, make it the other value, yes, no,
> true, false, etc )
>
> you might also try running 'pnpinfo' but i'll bet it dumps core....or at
> least fails immediately with words to the effect of 'PnP not
> intitialized...exiting'
>
will try those next opportunity I have to run that machine.

> oh, and the other thing to check, is the soundcard support even tunred on
> in the bios, usually bios's have an option to turn onboard sound off.
>

I have tried with the sound card enabled and disabled in the bios (to see if 
it makes a difference, and I still get the "chip1 <PCI to other bridge>" 
line.  Which is part of why I don't think that is necessarily directly 
related to the multimedia issue.  And I also tried shuffling around IRQs to a 
couple of different unused values....maybe I should try a used value and see 
if it breaks something....

> have you heard the sound work in windows?
>
it had windows when I first got it, and now I cant remember if it palyed 
sounds or not.  I seem to remeber that it did.

> the other thing to do is to go into the bios and manually assign the dma
> and interrupt for the sound parts.
>
I tried changing the interrupt to no avail, but not the DMAs.  I figure it 
should detect the card with or without working DMS's, I can worry about that 
after I get the card to at least detect.

> but i wouldnt do that until i tried to sort out the pnp stuff. u might
> also visit the manufacurers website and see if there is a bios update.

There is no mention of my model any more on their web site.  One thing I 
didn't try was emailing their technical support people to see if they have a 
bios upgrade available but not listed on the web site.  I tried that almsot 
right off the bat.  

It seems that I may just be SOL on this particular project.  But I'll give it 
one more college try <(}:

mike
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